Which products and versions are affected by CVE-2022-39197?

Affected: Cobalt Strike (Helpsystems). The full list is in the CVE brief.

Is CVE-2022-39197 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jan 17, 2023.

Is CVE-2022-39197 in the CISA KEV catalog?

Yes. It was added on Mar 30, 2023 with a federal remediation due date of Apr 20, 2023.

Is there a public exploit for CVE-2022-39197?

Public exploit code is available.

Is there a fix for CVE-2022-39197?

Fixed versions are available, including Cobalt Strike 4.7.1.

How urgently should CVE-2022-39197 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2022-39197

MediumExploitedPublic exploit

An XSS (Cross Site Scripting) vulnerability was found in HelpSystems Cobalt Strike through 4.7 that allowed a remote attacker to execute HTML on the Cobalt Strike teamserver.

Published Sep 21, 2022 · Updated Nov 3, 2025

Key Facts

Patch immediately

CVE-2022-39197 is a medium-severity vulnerability (CVSS 6.1 v3.1) affecting Cobalt Strike (Helpsystems).
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jan 17, 2023. Public exploit code is available.
EPSS estimates a 46% probability of exploitation in the next 30 days.
Fixed versions are available, including Cobalt Strike 4.7.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

6.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS (30-day exploit likelihood)

46%

Higher than 98.8% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2022-39197 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

An XSS (Cross Site Scripting) vulnerability was found in HelpSystems Cobalt Strike through 4.7 that allowed a remote attacker to execute HTML on the Cobalt Strike teamserver. To exploit the vulnerability, one must first inspect a Cobalt Strike payload, and then modify the username field in the payload (or create a new payload with the extracted information and then modify that username field to be malformed).

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Mar 30, 2023	Apr 20, 2023	Not reported
Industry KEV feed	Jan 17, 2023	Apr 20, 2023	Not reported
CIRCL KEV	Mar 30, 2023	Apr 20, 2023	Not reported
ENISA EUVD	Mar 30, 2023	n/a	Not reported

Required action: Apply updates per vendor instructions.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
Cobalt StrikeHelpsystems	See advisory	4.7.1

Patched Releases

Cobalt Strike

4.7.1

Timeline

Publicly disclosed
Sep 21, 2022
Added to Industry KEV feed
Jan 17, 2023
Added to CISA KEV
Mar 30, 2023
Added to CIRCL KEV
Mar 30, 2023
Added to ENISA EUVD
Mar 30, 2023
Last updated
Nov 3, 2025

Weakness Type

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References

FAQ

Common Questions.

An XSS (Cross Site Scripting) vulnerability was found in HelpSystems Cobalt Strike through 4.7 that allowed a remote attacker to execute HTML on the Cobalt Strike teamserver.
Affected: Cobalt Strike (Helpsystems). The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jan 17, 2023.
Yes. It was added on Mar 30, 2023 with a federal remediation due date of Apr 20, 2023.
Public exploit code is available.
Fixed versions are available, including Cobalt Strike 4.7.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2022-39197 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.